// Copyright (c) 2012, Willow Garage, Inc.
// Copyright (c) 2017, Open Source Robotics Foundation, Inc.
// All rights reserved.
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//      notice, this list of conditions and the following disclaimer.
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//    * Redistributions in binary form must reproduce the above copyright
//      notice, this list of conditions and the following disclaimer in the
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//      this software without specific prior written permission.
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#include "rviz_common/properties/float_edit.hpp"

#include <QDoubleValidator>
#include <QLocale>
#include <QString>

namespace rviz_common
{
namespace properties
{

FloatEdit::FloatEdit(QWidget * parent)
: QLineEdit(parent)
{
  setFrame(false);
  setValidator(new QDoubleValidator(this));
  connect(this, SIGNAL(textEdited(const QString&)), this, SLOT(updateValue()));
}

float FloatEdit::getValue() const
{
  return value_;
}

void FloatEdit::setValue(float new_value)
{
  if (value_ != new_value) {
    QLocale locale;
    value_ = new_value;
    bool ok = true;
    float existing_text_value = locale.toFloat(text(), &ok);
    if (!ok || existing_text_value != new_value) {
      setText(locale.toString(static_cast<double>(value_)));
    }
  }
}

void FloatEdit::updateValue()
{
  if (hasAcceptableInput() ) {
    bool ok = true;
    float new_value = QLocale().toFloat(text(), &ok);
    if (ok) {
      setValue(new_value);
    }
  }
}

}  // namespace properties
}  // namespace rviz_common
